10–12 oct. 2023
LPENS
Fuseau horaire Europe/Paris

Patrick Valageas (IPhT): Some gravitational aspects of scalar field dark matter

11 oct. 2023, 09:00
30m
Salle Jean Jaurès (LPENS)

Salle Jean Jaurès

LPENS

29 rue d'Ulm 75005 Paris

Orateur

Patrick VALAGEAS (CEA Saclay)

Description

Scalar field dark matter models (such as Fuzzy Dark Matter, axion-like particles, ultra-light DM) are interesting dark matter
candidates. Their gravitational dynamics follow the usual CDM behaviours on large scales but differ on small scales because
of wave effects or self-interactions.
I will briefly present two aspects of their gravitational dynamics: the formation of solitons, which could play a role for the
tensions of CDM on galactic scales, and the accretion onto Black Holes, which could provide a probe of such DM clouds
through gravitational waves.

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